Gjennomsnittlig GPS-koordinater for postnummer 4000: 50.658, 5.552

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Notering byer:
>> Liège 4000, Wallonie, Liège, Liège, GPS-koordinater: 50.6412,5.5718
>> Liège Glain 4000, Wallonie, Liège, Liège, GPS-koordinater: 50.65,5.5333
>> Liège Rocourt 4000, Wallonie, Liège, Liège, GPS-koordinater: 50.6833,5.55